66746708 has 12 divisors (see below), whose sum is σ = 133493472. Its totient is φ = 28605720.

The previous prime is 66746699. The next prime is 66746711. The reversal of 66746708 is 80764766.

66746708 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191878 + ... + 1191933.

It is an arithmetic number, because the mean of its divisors is an integer number (11124456).

Almost surely, 2^66746708 is an apocalyptic number.

It is an amenable number.

66746708 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66746708 is a wasteful number, since it uses less digits than its factorization.

66746708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383822 (or 2383820 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 66746708 is about 8169.8658495718. The cubic root of 66746708 is about 405.6423439901.

The spelling of 66746708 in words is "sixty-six million, seven hundred forty-six thousand, seven hundred eight".